AmphiLight: Direct Air Water Communication with Laser Light
summary
A waterproof laser link system uses a MEMS mirror + fisheye lens and triplet optics to steer a narrow-beam laser across a full hemisphere, an ultrasonic sensor array plus bicubic interpolation and periodic forecasting reconstructs waves and an incident-point optimizer (Snell’s-law gradient ascent in <1 ms) directs the beam. A 4 nm optical bandpass lifts SNR from −13 dB to +4.4 dB. Real tests show up to 5.04 Mbps, zero-BER at 6.1 m and connection time rising from ~52% to ~83% with forecasting.
AI-written summary · about
chapters (10)
- 0:00Intro
- 4:16Link Design
- 7:45Sensing
- 12:40System Evaluation
- 12:57Throughput
- 13:53Range
- 14:30Ambient light robustness
- 15:04Wave robustness
- 16:23Future work
- 18:00Questions
related talks
17mCatch Me If You Can: Laser Tethering with Highly Mobile Targets
17mExploiting Digital Micro-Mirror Devices for Ambient Light Communication
09m20,000 Leagues Inside the Optical Fiber
10m20,000 Leagues Inside the Optical Fiber
15mAcoustic Sensing and Communication Using Metasurface
12mLacuna Space
13mLeakyScatter: A Frequency-Agile Directional Backscatter Network Above 100 GHz
17mmmWall: A Steerable, Transflective Metamaterial Surface for NextG mmWave Networks